using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace TcgEngine
{
    /// <summary>
    /// Defines all packs data
    /// </summary>

    [CreateAssetMenu(fileName = "PackData", menuName = "TcgEngine/PackData", order = 5)]
    public class PackData : ScriptableObject
    {
        public string id;

        [Header("Content")]
        public PackType type;
        public int cards = 5;   //Cards per pack
        public PackRarity[] rarities_1st;  //Probability of each rarity, for first card
        public PackRarity[] rarities;      //Probability of each rarity, for other cards
        public PackVariant[] variants;      //Probability of each variant, for other cards

        [Header("Display")]
        public string title;
        public Sprite pack_img;
        public Sprite cardback_img;
        
        [Header("Dynamic Art Paths")]
        public string pack_img_path;
        public string cardback_img_path;
        
        [TextArea(5, 10)]
        public string desc;
        public int sort_order;

        [Header("Availability")]
        public bool available = true;
        public int cost = 100;  //Cost to buy

        public static List<PackData> pack_list = new List<PackData>();

        public static void Load(string folder = "")
        {
            if (pack_list.Count == 0)
                pack_list.AddRange(Resources.LoadAll<PackData>(folder));

            pack_list.Sort((PackData a, PackData b) => {
                if (a.sort_order == b.sort_order)
                    return a.id.CompareTo(b.id);
                else
                    return a.sort_order.CompareTo(b.sort_order);
            });
        }

        public string GetTitle()
        {
            return title;
        }

        public string GetDesc()
        {
            return desc;
        }
        
        /// <summary>
        /// 获取Pack图片，优先使用动态路径
        /// </summary>
        public Sprite GetPackImage()
        {
            if (!string.IsNullOrEmpty(pack_img_path))
            {
                Sprite dynamicSprite = SpriteLoader.Get()?.LoadSprite(pack_img_path);
                if (dynamicSprite != null)
                {
                    return dynamicSprite;
                }
                else
                {
                    Debug.LogWarning($"Pack {id} 图片加载失败: {pack_img_path}");
                }
            }
            else
            {
                Debug.LogWarning($"Pack {id} pack_img_path为空");
            }
            return pack_img;
        }
        
        /// <summary>
        /// 获取卡背图片，优先使用动态路径
        /// </summary>
        public Sprite GetCardbackImage()
        {
            if (!string.IsNullOrEmpty(cardback_img_path))
            {
                Sprite dynamicSprite = SpriteLoader.Get()?.LoadSprite(cardback_img_path);
                if (dynamicSprite != null)
                {
                    return dynamicSprite;
                }
                else
                {
                    Debug.LogWarning($"Pack {id} 卡背图片加载失败: {cardback_img_path}");
                }
            }
            else
            {
                Debug.LogWarning($"Pack {id} cardback_img_path为空");
            }
            return cardback_img;
        }

        public static PackData Get(string id)
        {
            foreach (PackData pack in GetAll())
            {
                if (pack.id == id)
                    return pack;
            }
            return null;
        }

        public static List<PackData> GetAllAvailable()
        {
            List<PackData> valid_list = new List<PackData>();
            foreach (PackData apack in GetAll())
            {
                if (apack.available)
                    valid_list.Add(apack);
            }
            return valid_list;
        }

        public static List<PackData> GetAll()
        {
            return pack_list;
        }
    }

    public enum PackType
    {
        Random = 0,
        Fixed = 10,
    }

    [System.Serializable]
    public struct PackRarity
    {
        public RarityData rarity;
        public int probability;
    }

    [System.Serializable]
    public struct PackVariant
    {
        public VariantData variant;
        public int probability;
    }
}